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GPIO Demo

Overview

After starting this application, perform the following actions:

Initialize the gpio
Configure the gpio, including GPIO input/output and interrupt configuration, and describe IO configurations that are not defined in the device table
Use interrupt triggering to observe device log output

Environmental Requirements

Please note that gpio should be configured using devcie tree as a device, but due to the characteristics of iomux, IO configuration for pins is also provided

Building and Flashing

Example Location： examples/peripheral/gpio

For operations such as compiling and burning, please refer to: Quick Start Guide

Running Result

The following log is displayed after successful operation

D/dt              [0.090] add device gpio
I/gpio            [0.094] WM_GPIO_DEFINE3 data value high
I/gpio            [1.098] WM_GPIO_DEFINE3 data value low
I/gpio            [2.102] gpio init ok
I/gpio            [19.178] GPIO[4] intr, val: 1
I/gpio            [21.214] GPIO[4] intr, val: 0